I would say you probably can't use it in a commercial game without her permission. Generally speaking, the presumed license when a resource is posted by the author on a forum is that it can be freely used in any non-commercial project without further permission as long as credit is given. It probably can't be redistributed either unless it is packaged with a game. With her, it's a little more complicated since I seem to remember her going around taking down her threads everywhere. Of course, once a public license is given it can't really be withdrawn, but unless she explicitly authorized its use for commercial purposes in her original threads, then I think you technically cannot. Whether she would pursue legal action against you, IDK.